[llvm] 861386d - [libc++] Remove <experimental/filesystem> header

Joe Loser via llvm-commits llvm-commits at lists.llvm.org
Sat Feb 12 16:45:14 PST 2022


Author: Joe Loser
Date: 2022-02-12T19:43:57-05:00
New Revision: 861386dbd6ff0d91636b7c674c2abb2eccd9d3f2

URL: https://github.com/llvm/llvm-project/commit/861386dbd6ff0d91636b7c674c2abb2eccd9d3f2
DIFF: https://github.com/llvm/llvm-project/commit/861386dbd6ff0d91636b7c674c2abb2eccd9d3f2.diff

LOG: [libc++] Remove <experimental/filesystem> header

`<filesystem>` header has been around for a while now, so we can safely remove
`<experimental/filesystem>` header. `_LIBCPP_DEPRECATED_EXPERIMENTAL_FILESYSTEM`
suggests we were going to remove `<experimental/filesystem>` in llvm 11 release,
but we never did. So, remove the experimental header now, its associated tests,
and the `_LIBCPP_DEPRECATED_EXPERIMENTAL_FILESYSTEM` macro.

Differential Revision: https://reviews.llvm.org/D119603

Added: 
    

Modified: 
    libcxx/docs/ReleaseNotes.rst
    libcxx/include/CMakeLists.txt
    libcxx/include/experimental/__config
    libcxx/include/module.modulemap
    libcxx/test/libcxx/double_include.sh.cpp
    libcxx/test/libcxx/min_max_macros.compile.pass.cpp
    libcxx/test/libcxx/nasty_macros.compile.pass.cpp
    libcxx/test/libcxx/no_assert_include.compile.pass.cpp
    libcxx/utils/generate_header_tests.py
    llvm/utils/gn/secondary/libcxx/include/BUILD.gn

Removed: 
    libcxx/include/experimental/filesystem
    libcxx/test/libcxx/experimental/filesystem/deprecated.verify.cpp
    libcxx/test/libcxx/experimental/filesystem/version.pass.cpp
    libcxx/test/std/experimental/filesystem/fs.req.macros/feature_macro.pass.cpp
    libcxx/test/std/experimental/filesystem/fs.req.namespace/namespace.pass.cpp


################################################################################
diff  --git a/libcxx/docs/ReleaseNotes.rst b/libcxx/docs/ReleaseNotes.rst
index 0bf24b982150..58b45065e2e2 100644
--- a/libcxx/docs/ReleaseNotes.rst
+++ b/libcxx/docs/ReleaseNotes.rst
@@ -46,6 +46,9 @@ API Changes
   they were not supposed to set ``_LIBCPP_ABI_UNSTABLE`` manually, however we
   still feel that it is worth mentioning in the release notes in case some users
   had been doing it.
+- The header ``<experimental/filesystem>`` has been removed. Instead, use
+  ``<filesystem>`` header. The associated macro
+  ``_LIBCPP_DEPRECATED_EXPERIMENTAL_FILESYSTEM`` has also been removed.
 
 ABI Changes
 -----------

diff  --git a/libcxx/include/CMakeLists.txt b/libcxx/include/CMakeLists.txt
index 40ada5c9ce9e..877befc6b96b 100644
--- a/libcxx/include/CMakeLists.txt
+++ b/libcxx/include/CMakeLists.txt
@@ -450,7 +450,6 @@ set(files
   experimental/algorithm
   experimental/coroutine
   experimental/deque
-  experimental/filesystem
   experimental/forward_list
   experimental/functional
   experimental/iterator

diff  --git a/libcxx/include/experimental/__config b/libcxx/include/experimental/__config
index 7cbb7f425e41..a71b348c0490 100644
--- a/libcxx/include/experimental/__config
+++ b/libcxx/include/experimental/__config
@@ -32,19 +32,6 @@
 #define _LIBCPP_END_NAMESPACE_LFTS_PMR _LIBCPP_END_NAMESPACE_LFTS }
 #define _VSTD_LFTS_PMR _VSTD_LFTS::pmr
 
-#if defined(_LIBCPP_NO_EXPERIMENTAL_DEPRECATION_WARNING_FILESYSTEM)
-#   define _LIBCPP_DEPRECATED_EXPERIMENTAL_FILESYSTEM /* nothing */
-#else
-#   define _LIBCPP_DEPRECATED_EXPERIMENTAL_FILESYSTEM __attribute__((deprecated("std::experimental::filesystem has now been deprecated in favor of C++17's std::filesystem. Please stop using it and start using std::filesystem. This experimental version will be removed in LLVM 11. You can remove this warning by defining the _LIBCPP_NO_EXPERIMENTAL_DEPRECATION_WARNING_FILESYSTEM macro.")))
-#endif
-
-#define _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL_FILESYSTEM \
-    _LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL namespace filesystem _LIBCPP_DEPRECATED_EXPERIMENTAL_FILESYSTEM { \
-    inline namespace v1 {
-
-#define _LIBCPP_END_NAMESPACE_EXPERIMENTAL_FILESYSTEM \
-    } } _LIBCPP_END_NAMESPACE_EXPERIMENTAL
-
 #if !defined(__cpp_coroutines) || __cpp_coroutines < 201703L
 #define _LIBCPP_HAS_NO_EXPERIMENTAL_COROUTINES
 #endif

diff  --git a/libcxx/include/experimental/filesystem b/libcxx/include/experimental/filesystem
deleted file mode 100644
index 8f3fa38a3fdb..000000000000
--- a/libcxx/include/experimental/filesystem
+++ /dev/null
@@ -1,256 +0,0 @@
-// -*- C++ -*-
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-#ifndef _LIBCPP_EXPERIMENTAL_FILESYSTEM
-#define _LIBCPP_EXPERIMENTAL_FILESYSTEM
-/*
-    filesystem synopsis
-
-    namespace std { namespace experimental { namespace filesystem { inline namespace v1 {
-
-    class path;
-
-    void swap(path& lhs, path& rhs) noexcept;
-    size_t hash_value(const path& p) noexcept;
-
-    bool operator==(const path& lhs, const path& rhs) noexcept;
-    bool operator!=(const path& lhs, const path& rhs) noexcept;
-    bool operator< (const path& lhs, const path& rhs) noexcept;
-    bool operator<=(const path& lhs, const path& rhs) noexcept;
-    bool operator> (const path& lhs, const path& rhs) noexcept;
-    bool operator>=(const path& lhs, const path& rhs) noexcept;
-
-    path operator/ (const path& lhs, const path& rhs);
-
-    // fs.path.io operators are friends of path.
-    template <class charT, class traits>
-    friend basic_ostream<charT, traits>&
-    operator<<(basic_ostream<charT, traits>& os, const path& p);
-
-    template <class charT, class traits>
-    friend basic_istream<charT, traits>&
-    operator>>(basic_istream<charT, traits>& is, path& p);
-
-    template <class Source>
-      path u8path(const Source& source);
-    template <class InputIterator>
-      path u8path(InputIterator first, InputIterator last);
-
-    class filesystem_error;
-    class directory_entry;
-
-    class directory_iterator;
-
-    // enable directory_iterator range-based for statements
-    directory_iterator begin(directory_iterator iter) noexcept;
-    directory_iterator end(const directory_iterator&) noexcept;
-
-    class recursive_directory_iterator;
-
-    // enable recursive_directory_iterator range-based for statements
-    recursive_directory_iterator begin(recursive_directory_iterator iter) noexcept;
-    recursive_directory_iterator end(const recursive_directory_iterator&) noexcept;
-
-    class file_status;
-
-    struct space_info
-    {
-      uintmax_t capacity;
-      uintmax_t free;
-      uintmax_t available;
-    };
-
-    enum class file_type;
-    enum class perms;
-    enum class perm_options;
-    enum class copy_options;
-    enum class directory_options;
-
-    typedef chrono::time_point<trivial-clock>  file_time_type;
-
-    // operational functions
-
-    path absolute(const path& p);
-    path absolute(const path& p, error_code &ec);
-
-    path canonical(const path& p);
-    path canonical(const path& p, error_code& ec);
-
-    void copy(const path& from, const path& to);
-    void copy(const path& from, const path& to, error_code& ec);
-    void copy(const path& from, const path& to, copy_options options);
-    void copy(const path& from, const path& to, copy_options options,
-                   error_code& ec);
-
-    bool copy_file(const path& from, const path& to);
-    bool copy_file(const path& from, const path& to, error_code& ec);
-    bool copy_file(const path& from, const path& to, copy_options option);
-    bool copy_file(const path& from, const path& to, copy_options option,
-                           error_code& ec);
-
-    void copy_symlink(const path& existing_symlink, const path& new_symlink);
-    void copy_symlink(const path& existing_symlink, const path& new_symlink,
-                              error_code& ec) noexcept;
-
-    bool create_directories(const path& p);
-    bool create_directories(const path& p, error_code& ec);
-
-    bool create_directory(const path& p);
-    bool create_directory(const path& p, error_code& ec) noexcept;
-
-    bool create_directory(const path& p, const path& attributes);
-    bool create_directory(const path& p, const path& attributes,
-                                  error_code& ec) noexcept;
-
-    void create_directory_symlink(const path& to, const path& new_symlink);
-    void create_directory_symlink(const path& to, const path& new_symlink,
-                                          error_code& ec) noexcept;
-
-    void create_hard_link(const path& to, const path& new_hard_link);
-    void create_hard_link(const path& to, const path& new_hard_link,
-                                  error_code& ec) noexcept;
-
-    void create_symlink(const path& to, const path& new_symlink);
-    void create_symlink(const path& to, const path& new_symlink,
-                                error_code& ec) noexcept;
-
-    path current_path();
-    path current_path(error_code& ec);
-    void current_path(const path& p);
-    void current_path(const path& p, error_code& ec) noexcept;
-
-    bool exists(file_status s) noexcept;
-    bool exists(const path& p);
-    bool exists(const path& p, error_code& ec) noexcept;
-
-    bool equivalent(const path& p1, const path& p2);
-    bool equivalent(const path& p1, const path& p2, error_code& ec) noexcept;
-
-    uintmax_t    file_size(const path& p);
-    uintmax_t    file_size(const path& p, error_code& ec) noexcept;
-
-    uintmax_t    hard_link_count(const path& p);
-    uintmax_t    hard_link_count(const path& p, error_code& ec) noexcept;
-
-    bool is_block_file(file_status s) noexcept;
-    bool is_block_file(const path& p);
-    bool is_block_file(const path& p, error_code& ec) noexcept;
-
-    bool is_character_file(file_status s) noexcept;
-    bool is_character_file(const path& p);
-    bool is_character_file(const path& p, error_code& ec) noexcept;
-
-    bool is_directory(file_status s) noexcept;
-    bool is_directory(const path& p);
-    bool is_directory(const path& p, error_code& ec) noexcept;
-
-    bool is_empty(const path& p);
-    bool is_empty(const path& p, error_code& ec) noexcept;
-
-    bool is_fifo(file_status s) noexcept;
-    bool is_fifo(const path& p);
-    bool is_fifo(const path& p, error_code& ec) noexcept;
-
-    bool is_other(file_status s) noexcept;
-    bool is_other(const path& p);
-    bool is_other(const path& p, error_code& ec) noexcept;
-
-    bool is_regular_file(file_status s) noexcept;
-    bool is_regular_file(const path& p);
-    bool is_regular_file(const path& p, error_code& ec) noexcept;
-
-    bool is_socket(file_status s) noexcept;
-    bool is_socket(const path& p);
-    bool is_socket(const path& p, error_code& ec) noexcept;
-
-    bool is_symlink(file_status s) noexcept;
-    bool is_symlink(const path& p);
-    bool is_symlink(const path& p, error_code& ec) noexcept;
-
-    file_time_type  last_write_time(const path& p);
-    file_time_type  last_write_time(const path& p, error_code& ec) noexcept;
-    void last_write_time(const path& p, file_time_type new_time);
-    void last_write_time(const path& p, file_time_type new_time,
-                                 error_code& ec) noexcept;
-
-    void permissions(const path& p, perms prms,
-                     perm_options opts=perm_options::replace);
-    void permissions(const path& p, perms prms, error_code& ec) noexcept;
-    void permissions(const path& p, perms prms, perm_options opts,
-                     error_code& ec);
-
-    path proximate(const path& p, error_code& ec);
-    path proximate(const path& p, const path& base = current_path());
-    path proximate(const path& p, const path& base, error_code &ec);
-
-    path read_symlink(const path& p);
-    path read_symlink(const path& p, error_code& ec);
-
-    path relative(const path& p, error_code& ec);
-    path relative(const path& p, const path& base=current_path());
-    path relative(const path& p, const path& base, error_code& ec);
-
-    bool remove(const path& p);
-    bool remove(const path& p, error_code& ec) noexcept;
-
-    uintmax_t    remove_all(const path& p);
-    uintmax_t    remove_all(const path& p, error_code& ec);
-
-    void rename(const path& from, const path& to);
-    void rename(const path& from, const path& to, error_code& ec) noexcept;
-
-    void resize_file(const path& p, uintmax_t size);
-    void resize_file(const path& p, uintmax_t size, error_code& ec) noexcept;
-
-    space_info   space(const path& p);
-    space_info   space(const path& p, error_code& ec) noexcept;
-
-    file_status  status(const path& p);
-    file_status  status(const path& p, error_code& ec) noexcept;
-
-    bool status_known(file_status s) noexcept;
-
-    file_status  symlink_status(const path& p);
-    file_status  symlink_status(const path& p, error_code& ec) noexcept;
-
-    path temp_directory_path();
-    path temp_directory_path(error_code& ec);
-
-    path weakly_canonical(path const& p);
-    path weakly_canonical(path const& p, error_code& ec);
-
-
-} } } }  // namespaces std::experimental::filesystem::v1
-
-*/
-
-#include <experimental/__config>
-#include <filesystem>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-#  pragma GCC system_header
-#endif
-
-_LIBCPP_PUSH_MACROS
-#include <__undef_macros>
-
-#ifndef _LIBCPP_CXX03_LANG
-
-#define __cpp_lib_experimental_filesystem 201406
-
-_LIBCPP_BEGIN_NAMESPACE_EXPERIMENTAL_FILESYSTEM
-
-using namespace _VSTD_FS;
-
-_LIBCPP_END_NAMESPACE_EXPERIMENTAL_FILESYSTEM
-
-#endif // !_LIBCPP_CXX03_LANG
-
-_LIBCPP_POP_MACROS
-
-#endif // _LIBCPP_EXPERIMENTAL_FILESYSTEM

diff  --git a/libcxx/include/module.modulemap b/libcxx/include/module.modulemap
index 6a55bf3f42d7..572705330fe0 100644
--- a/libcxx/include/module.modulemap
+++ b/libcxx/include/module.modulemap
@@ -1020,10 +1020,6 @@ module std [system] {
       header "experimental/deque"
       export *
     }
-    module filesystem {
-      header "experimental/filesystem"
-      export *
-    }
     module forward_list {
       header "experimental/forward_list"
       export *

diff  --git a/libcxx/test/libcxx/double_include.sh.cpp b/libcxx/test/libcxx/double_include.sh.cpp
index 41591b77991e..6e2c2ab0e6f9 100644
--- a/libcxx/test/libcxx/double_include.sh.cpp
+++ b/libcxx/test/libcxx/double_include.sh.cpp
@@ -210,9 +210,6 @@
 #        include <experimental/coroutine>
 #    endif
 #    include <experimental/deque>
-#    ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY
-#        include <experimental/filesystem>
-#    endif
 #    include <experimental/forward_list>
 #    include <experimental/functional>
 #    include <experimental/iterator>

diff  --git a/libcxx/test/libcxx/experimental/filesystem/deprecated.verify.cpp b/libcxx/test/libcxx/experimental/filesystem/deprecated.verify.cpp
deleted file mode 100644
index d9064e182e82..000000000000
--- a/libcxx/test/libcxx/experimental/filesystem/deprecated.verify.cpp
+++ /dev/null
@@ -1,20 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-// UNSUPPORTED: c++03
-// UNSUPPORTED: libcpp-has-no-filesystem-library
-
-// <experimental/filesystem>
-
-#include <experimental/filesystem>
-
-using namespace std::experimental::filesystem; // expected-warning {{'filesystem' is deprecated: std::experimental::filesystem has now been deprecated in favor of C++17's std::filesystem. Please stop using it and start using std::filesystem. This experimental version will be removed in LLVM 11. You can remove this warning by defining the _LIBCPP_NO_EXPERIMENTAL_DEPRECATION_WARNING_FILESYSTEM macro.}}
-
-int main(int, char**) {
-  return 0;
-}

diff  --git a/libcxx/test/libcxx/experimental/filesystem/version.pass.cpp b/libcxx/test/libcxx/experimental/filesystem/version.pass.cpp
deleted file mode 100644
index 70c3ba742222..000000000000
--- a/libcxx/test/libcxx/experimental/filesystem/version.pass.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-// UNSUPPORTED: libcpp-has-no-filesystem-library
-
-// <experimental/filesystem>
-
-#define _LIBCPP_NO_EXPERIMENTAL_DEPRECATION_WARNING_FILESYSTEM
-
-#include <experimental/filesystem>
-
-#include "test_macros.h"
-
-#ifndef _LIBCPP_VERSION
-#error _LIBCPP_VERSION not defined
-#endif
-
-int main(int, char**)
-{
-
-  return 0;
-}

diff  --git a/libcxx/test/libcxx/min_max_macros.compile.pass.cpp b/libcxx/test/libcxx/min_max_macros.compile.pass.cpp
index 3d0425a3542a..4bde1336de02 100644
--- a/libcxx/test/libcxx/min_max_macros.compile.pass.cpp
+++ b/libcxx/test/libcxx/min_max_macros.compile.pass.cpp
@@ -329,10 +329,6 @@ TEST_MACROS();
 #    endif
 #    include <experimental/deque>
 TEST_MACROS();
-#    ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY
-#        include <experimental/filesystem>
-TEST_MACROS();
-#    endif
 #    include <experimental/forward_list>
 TEST_MACROS();
 #    include <experimental/functional>

diff  --git a/libcxx/test/libcxx/nasty_macros.compile.pass.cpp b/libcxx/test/libcxx/nasty_macros.compile.pass.cpp
index 652939833161..d94e3b3a54ec 100644
--- a/libcxx/test/libcxx/nasty_macros.compile.pass.cpp
+++ b/libcxx/test/libcxx/nasty_macros.compile.pass.cpp
@@ -320,9 +320,6 @@
 #        include <experimental/coroutine>
 #    endif
 #    include <experimental/deque>
-#    ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY
-#        include <experimental/filesystem>
-#    endif
 #    include <experimental/forward_list>
 #    include <experimental/functional>
 #    include <experimental/iterator>

diff  --git a/libcxx/test/libcxx/no_assert_include.compile.pass.cpp b/libcxx/test/libcxx/no_assert_include.compile.pass.cpp
index 8f16a6386c22..37e88f7db0c4 100644
--- a/libcxx/test/libcxx/no_assert_include.compile.pass.cpp
+++ b/libcxx/test/libcxx/no_assert_include.compile.pass.cpp
@@ -205,9 +205,6 @@
 #        include <experimental/coroutine>
 #    endif
 #    include <experimental/deque>
-#    ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY
-#        include <experimental/filesystem>
-#    endif
 #    include <experimental/forward_list>
 #    include <experimental/functional>
 #    include <experimental/iterator>

diff  --git a/libcxx/test/std/experimental/filesystem/fs.req.macros/feature_macro.pass.cpp b/libcxx/test/std/experimental/filesystem/fs.req.macros/feature_macro.pass.cpp
deleted file mode 100644
index 58cadb53e49a..000000000000
--- a/libcxx/test/std/experimental/filesystem/fs.req.macros/feature_macro.pass.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-// UNSUPPORTED: libcpp-has-no-filesystem-library
-
-// <experimental/filesystem>
-
-// #define __cpp_lib_experimental_filesystem 201406L
-
-#include <experimental/filesystem>
-#include "test_macros.h"
-
-#if TEST_STD_VER >= 11
-#ifndef __cpp_lib_experimental_filesystem
-#error Filesystem feature test macro is not defined  (__cpp_lib_experimental_filesystem)
-#elif __cpp_lib_experimental_filesystem != 201406L
-#error Filesystem feature test macro has an incorrect value (__cpp_lib_experimental_filesystem)
-#endif
-#else // TEST_STD_VER < 11
-#ifdef __cpp_lib_experimental_filesystem
-#error Filesystem feature test macro should not be defined in c++03
-#endif
-#endif
-
-int main(int, char**) {
-  return 0;
-}

diff  --git a/libcxx/test/std/experimental/filesystem/fs.req.namespace/namespace.pass.cpp b/libcxx/test/std/experimental/filesystem/fs.req.namespace/namespace.pass.cpp
deleted file mode 100644
index 7a82fe6cd474..000000000000
--- a/libcxx/test/std/experimental/filesystem/fs.req.namespace/namespace.pass.cpp
+++ /dev/null
@@ -1,28 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-// UNSUPPORTED: c++03
-// UNSUPPORTED: libcpp-has-no-filesystem-library
-
-// <experimental/filesystem>
-
-// namespace std::experimental::filesystem::v1
-
-#include <experimental/filesystem>
-#include <type_traits>
-
-#include "test_macros.h"
-
-int main(int, char**) {
-  static_assert(std::is_same<
-          std::experimental::filesystem::path,
-          std::experimental::filesystem::v1::path
-      >::value, "");
-
-  return 0;
-}

diff  --git a/libcxx/utils/generate_header_tests.py b/libcxx/utils/generate_header_tests.py
index 9b7af9bac03e..55bbc58e39b5 100755
--- a/libcxx/utils/generate_header_tests.py
+++ b/libcxx/utils/generate_header_tests.py
@@ -29,7 +29,6 @@ def get_libcxx_paths():
     "shared_mutex": ["ifndef _LIBCPP_HAS_NO_THREADS"],
     "thread": ["ifndef _LIBCPP_HAS_NO_THREADS"],
 
-    "experimental/filesystem": ["ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY"],
     "filesystem": ["ifndef _LIBCPP_HAS_NO_FILESYSTEM_LIBRARY"],
     "format": ["ifndef _LIBCPP_HAS_NO_INCOMPLETE_FORMAT"],
 

diff  --git a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
index 164923f0014b..42cd8e84e92c 100644
--- a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -504,7 +504,6 @@ if (current_toolchain == default_toolchain) {
       "experimental/algorithm",
       "experimental/coroutine",
       "experimental/deque",
-      "experimental/filesystem",
       "experimental/forward_list",
       "experimental/functional",
       "experimental/iterator",


        


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